With Tool Or Equipment Control Patents (Class 180/324)
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Patent number: 12179585Abstract: A computer system including a processor device configured to adjust a torque applies to a first wheel to a vehicle is provided. The processor device is configured to estimate, a variation in rotational speed of a first drive shaft. The first drive shaft is driven by a second drive shaft by rotating a mechanical joint. The mechanical joint is drivingly connected to both the first drive shaft and the second drive shaft. The processor device is configured to, based on the variation in rotational speed of the first drive shaft and a current speed of the vehicle, estimate a target slip for the first wheel. The processor device is further configured to, based on the estimated target slip for the first wheel, adjust the torque applied to the first wheel.Type: GrantFiled: December 13, 2023Date of Patent: December 31, 2024Assignee: Volvo Truck CorporationInventor: Chidambaram Subramanian
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Patent number: 11992969Abstract: A mixer vehicle system includes a mixer vehicle and an autonomous control system. The mixer vehicle includes a chassis and a vehicle body. The vehicle body includes a plurality of subcomponents including a cabin, a mixing drum, a charge hopper, and a chute. The autonomous control system is configured to automate an operation of the mixer vehicle. The autonomous control system includes a sensor and a controller. The sensor is configured to detect an event and generate a signal. The controller is configured to receive the signal and generate an output. The output includes the operation of the mixer vehicle. The operation of the mixer vehicle includes at least one of: (i) moving at least one of the plurality of subcomponents to a desired position; (ii) activating or deactivating at least one mode of operation; and (iii) providing an alert to an operator of the mixer vehicle.Type: GrantFiled: May 16, 2022Date of Patent: May 28, 2024Assignee: Oshkosh CorporationInventor: Bryan Datema
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Patent number: 11149759Abstract: Disclosed embodiments include hydraulic systems which provide power to lift, tilt and auxiliary (e.g., implement) functions, including high-flow auxiliary functions, with increased efficiency. Disclosed embodiments incorporate a single variable displacement pump that supplies pressurized fluid to a main control valve (e.g., for lift, tilt, and auxiliary functions) and a bypass circuit. The main control valve supplies fluid to control lift, tilt, and auxiliary flow for implements. The bypass circuit combines flow with the output of the auxiliary section of the main control valve to optionally provide high-flow for selected implements. The single variable displacement pump can then be set to different output flow levels, with the bypass circuit functioning differently under different conditions to optimize hydraulic flow to carryout various tasks under various conditions.Type: GrantFiled: July 25, 2019Date of Patent: October 19, 2021Assignee: CLARK EQUIPMENT COMPANYInventors: Charles Young, Jason R. Coombs
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Patent number: 10668806Abstract: A concrete transit mixer can include a cabin having four doors for people to enter and exit the cabin, and a rotatable drum for mixing and pouring concrete. The mixer can include a water tank mounted below the cabin and a fuel tank mounted below the cabin. The mixer can include four distinct sets of steps to allow people to climb up to each of the four doors to enter the cabin.Type: GrantFiled: February 3, 2017Date of Patent: June 2, 2020Assignee: CalPortland CompanyInventors: Daryl Morgan, Louis Mizner, William Hamblen
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Patent number: 10575466Abstract: A frame assembly for a work machine having a primary frame member and a prime mover platform removably coupled to the primary frame member. Wherein the prime mover platform is configured to selectively couple a prime mover to the primary frame member.Type: GrantFiled: November 20, 2017Date of Patent: March 3, 2020Assignee: DEERE & COMPANYInventors: Barrett D. Reed, Kevin J. Goering, Michael S. Garton
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Patent number: 10202740Abstract: The invention relates to a system and a method for, with a first and a second hand operated control means (11a, 11b), controlling movement on a work tool (5) for a construction machine (1). The construction machine (1) comprises a lower carriage (2), a top (3), a digging arm (4) and a work tool (5). The digging arm (4) comprises an inner link arm (4a) with a first and a second inner link arm end (4a1, 4a2) and an outer link arm (4b) with a first and a second outer link arm end (4b1, 4b2). The work tool (5) is secured in the second outer link arm end (4b2) via an attachment device (6) which enables controlled rotation and controlled tilting of the work tool (5) in relation to the outer link arm (4b).Type: GrantFiled: June 25, 2014Date of Patent: February 12, 2019Assignee: STEELWRIST ABInventors: Stefan Stockhaus, Markus Nilsson
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Patent number: 9976285Abstract: An excavator includes a chassis, an implement, control architecture, and an assembly to swing with, or relative to, the chassis and including a boom, stick to curl relative to the boom, and coupling between the implement and stick. The implement rotates about an axis R such that a leading edge LE defines a heading Î. The control architecture comprises sensors, actuators, and controllers to utilize sensor signals to generate a LE position relative to a reference based on reference data and map information, utilize sensor implement edge signals and the excavator position relative to the reference and map information to generate a nearest implement edge (NIE) signal indicative of a LE NIE position relative to the reference, and utilize the actuators for divertive implement rotation about R to adjust Î to account for divertive rotation away from an actual or projected overlap of the NIE and reference.Type: GrantFiled: July 27, 2016Date of Patent: May 22, 2018Assignee: Caterpillar Trimble Control Technologies LLCInventor: Christopher A. Padilla
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Patent number: 9663333Abstract: A self-propelled work machine includes an undercarriage provided with drive wheels driven by a drive device. An upper structure is rotatably mounted on the undercarriage. A drive unit is arranged in the undercarriage and a boom for a work tool is mounted on the undercarriage. The drive unit drives a power generator that is a power source for an electric motor arranged in the upper structure, the electric motor being the drive device for the drive wheels arranged on the undercarriage.Type: GrantFiled: November 27, 2015Date of Patent: May 30, 2017Assignee: SENNEBOGEN MASCHINENFABRIK GMBHInventor: Erich Sennebogen
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Patent number: 9457997Abstract: Counterweight fixing device (1) for a crane, which is comparatively easy to install and can also be used in particular for cranes with a derricking jib, in which the derricking jib is rigidly connected to the mast (3), and at the same time provides a safe design without generating a high noise level during operation. The core principle of the design of the counterweight fixing device (1) is that the counterweight blocks (4) are simply suspended on a carrier bar (2), but the generation of noise is kept to a low level due to the suppression of the freedom of movement of the counterweight blocks (4).Type: GrantFiled: November 20, 2012Date of Patent: October 4, 2016Assignee: Wolffkran Holding AGInventors: Ulrich Dorzbach, Johannes Kleinknecht, Jochen Ziegler
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Patent number: 9016418Abstract: A right front housing cover is arranged in the right side of a working mechanism, and a first control valve is arranged in a front portion side of a valve accommodation room that is covered with the right front housing cover. Further, a signal control valve block is arranged in the back side of the first control valve and in the upper side of the first control valve, and a solenoid valve is arranged in the back side of the signal control valve block. A front surface plate forming part of the right front housing cover has a lower side is inclined in an oblique downward direction toward the forward side, and is arranged along a virtual line that extends in an oblique downward direction through a front end portion of the first control valve and a front end portion of the signal control valve block.Type: GrantFiled: November 6, 2012Date of Patent: April 28, 2015Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Kakurou Ootsuka, Hidefumi Hiramatsu, Tsuyoshi Ueki
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Patent number: 8978812Abstract: An operator's seat mounting section (11) that is positioned in back side of a floor member (10) includes a seat plate (11D) for mounting an operator's seat (14) and an equipment mounting part (11F) that rises upward from the right side of the seat plate (11D), and a right operating lever assembly (16) is provided in front of the equipment mounting part (11F). A controller accommodating space (21) is provided to be positioned in back side of a console (16A) of the right operating lever assembly (16) and between a side surface (11F1) of the equipment mounting part (11F) of the operator's seat mounting section (11) and the operator's seat (14), and a controller (27) is mounted in the controller accommodating space (21) to control various kinds of electric equipment.Type: GrantFiled: October 3, 2012Date of Patent: March 17, 2015Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Shogo Kimura, Hiroshi Tabeta
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Patent number: 8948977Abstract: A system for controlling an implement of a machine is disclosed. The system may have a machine velocity sensor that senses an actual machine velocity and a targeted machine velocity sensor that senses a targeted machine velocity. The system may also have a controller, and an actuator configured to move an implement responsive to commands received from the controller by an actuator controller. The controller may be configured to receive the actual machine velocity from the machine velocity sensor, receive the targeted machine velocity from the targeted machine velocity sensor, compare the actual machine velocity to the targeted machine velocity, and send a command to the actuator controller to shake the implement based on the comparison of the actual machine velocity to the targeted machine velocity.Type: GrantFiled: December 28, 2011Date of Patent: February 3, 2015Assignee: Caterpillar Inc.Inventors: Forrest Liu, William Ostler
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Patent number: 8851225Abstract: This invention relates to construction machinery or a utility vehicle with at least one vehicle cabin or at least one driver's cab with a first seat with first control devices for a first operator, from which all of the essential driving and/or operating functions of the utility vehicle/construction machinery can be controlled. At least one second seat with second control devices for a second operator is provided in the vehicle cabin/the driver's cab in accordance with the invention, from which all of the essential driving and/or operating functions of the utility vehicle/construction machinery can likewise be controlled, including a steering function for the vehicle. Control elements are provided by means of which a higher standing is assigned to the second control devices when the first and second control devices are simultaneously actuated, so that the second control devices override the first control devices.Type: GrantFiled: April 10, 2013Date of Patent: October 7, 2014Inventor: Bernd Braun
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Publication number: 20130264139Abstract: This invention relates to construction machinery or a utility vehicle with at least one vehicle cabin or at least one driver's cab with a first seat with first control devices for a first operator, from which all of the essential driving and/or operating functions of the utility vehicle/construction machinery can be controlled. At least one second seat with second control devices for a second operator is provided in the vehicle cabin/the driver's cab in accordance with the invention, from which all of the essential driving and/or operating functions of the utility vehicle/construction machinery can likewise be controlled, including a steering function for the vehicle. Control elements are provided by means of which a higher standing is assigned to the second control devices when the first and second control devices are simultaneously actuated, so that the second control devices override the first control devices.Type: ApplicationFiled: April 10, 2013Publication date: October 10, 2013Inventor: Bernd Braun
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Patent number: 8528684Abstract: A charge pressure reduction circuit for a loader backhoe in which a directional control valve causes the charge pump to operate at a system pressure high enough to adequately supply a clutch circuit when conditions indicate the vehicle is operating in a loader or transport mode. The directional control valve causes the charge pump to operate at a lower pressure as, for example, required for a lubrication circuit when conditions indicate the vehicle is in a backhoe operating mode.Type: GrantFiled: November 30, 2011Date of Patent: September 10, 2013Assignee: Deere & CompanyInventors: Nathan H. Laws, Jonathan R. Copeland, Jacob J. Foxen, Anthony W. Brandon
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Patent number: 8505673Abstract: A control system for a saddle-type vehicle is provided. The control system includes a reverse lever, a hand brake lever, a throttle lever and at least one mount bracket. Each of the reverse lever, the hand brake lever and the throttle lever are pivotably coupled to the at least one mount bracket and the at least one mount bracket is configured to be connected to a first one of a right handlebar and a left handlebar of a saddle-type vehicle.Type: GrantFiled: December 12, 2011Date of Patent: August 13, 2013Assignee: Honda Motor Co., Ltd.Inventor: Lee N. Bowers
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Patent number: 8380402Abstract: Heavy equipment includes a main body, a drivetrain, a work implement, and a control system. The drivetrain includes a first and second actuator providing speed and direction movement of the heavy equipment. The work implement includes a third and fourth actuator providing position and orientation of the work implement. The control system includes first and second main interfaces and first and second auxiliary interfaces, to allows an operator to simultaneously control the drivetrain and the work implement. The first main interface is operated by a first hand of the operator, and the control system operates the third actuator responsive to a signal from the first main interface. The first auxiliary interface is integrated with the first main interface, and operates simultaneously with the first main interface by a finger of the first hand. The control system operates the first actuator responsive to a signal from the first auxiliary interface.Type: GrantFiled: September 14, 2010Date of Patent: February 19, 2013Assignee: Bucyrus Intl. Inc.Inventor: Lane C. Hobenshield
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Patent number: 8312946Abstract: A trigger 52a control apparatus is provided for operating a transmission 44 of a self-propelled mowing machine 20 via a cable 42 between a halt condition and an advancement condition. The trigger 52a control apparatus includes a housing 100, and a plurality of independently operable triggers 52a rotatably coupled to the housing 100 for movement between an engaged and a disengaged position 104. Each trigger 52a includes an operation member 108a. A cam 114 is rotatably coupled to the housing 100 about a cam rotation axis 116 and operatively coupled to the cable 42, wherein rotation of the cam 114 in a first direction relatively increases tension in the cable 42. An actuation member 138 is coupled to the cam 114 a distance from the cam rotation axis 116.Type: GrantFiled: July 2, 2009Date of Patent: November 20, 2012Assignee: Husqvarna Consumer Outdoor Products N.A., Inc.Inventors: Clint Lahey, Matthew Lambert
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Patent number: 8272468Abstract: A tractor includes a boom and a bucket being coupled with each other in series and having the same rotating direction, and a control lever for operating both the boom and the bucket. The control button is equipped in the control lever, and the control lever can operate either a boom or a bucket after either the boom or the bucket is selected by pressing the control button.Type: GrantFiled: February 25, 2010Date of Patent: September 25, 2012Assignee: Yanmar Co., Ltd.Inventor: Keisuke Iida
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Patent number: 8172030Abstract: A control system for a work machine. The control system allows an operator to selectively maintain control of a ground drive, a work tool, or both the ground drive and the work tool. The system provides a foot pedal movable between multiple positions. The foot pedal allows an operator to selectively hold the position of one or both of the ground drive control and work tool control. When the foot pedal is in a first position, the work tool control and ground drive control are not affected. When the foot pedal is in a second position, the position of the work tool control is maintained, while the ground drive control is not affected. When the foot pedal is in a third position, the position of the work tool control is maintained and the position of the ground drive control is maintained. A work tool control lock is used to prevent the work tool control from engaging when the foot pedal is in the second position or the third position.Type: GrantFiled: January 20, 2011Date of Patent: May 8, 2012Assignee: The Charles Machine Works, Inc.Inventors: Cody L. Sewell, Jacob A. Hamburger
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Patent number: 8104566Abstract: A control system for a construction vehicle, such as a motor grader, is provided. The control system includes a plurality of joysticks supported by an operator seat assembly of the motor grader.Type: GrantFiled: October 24, 2008Date of Patent: January 31, 2012Assignee: Deere & CompanyInventors: Neil Vincent Harber, Nathan Joseph Horstman, Charles Jon Paul Asp, James Michael Frett, Martin Lavern Ruhter, Michael Eugene Kennedy, Darrel Jeffrey Rowan, Richard John Gotto, Richard Arnold Valenzuela, Josh Dean Graeve, Maurice Thomas Nesbitt
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Patent number: 7957850Abstract: A mobile station for an unmanned vehicle comprises a vehicular storage area for storing a vehicle during transit or at rest. A first wireless transceiver communicates a status or command between the vehicle and the mobile station during at least one of vehicular deployment and rest. A station controller manages a management plan of the vehicle comprising at least one of retooling the vehicle, loading a payload on the vehicle, and recharging or refueling of the vehicle.Type: GrantFiled: August 19, 2009Date of Patent: June 7, 2011Assignee: Deere & CompanyInventor: Noel Wayne Anderson
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Patent number: 7938220Abstract: A material handling vehicle includes an operator compartment having two operator control handles, a deadman switch accessible by an operator using either control handle, and a traction system. The traction system is controlled by the control handles to drive the vehicle in a selected direction, wherein an operator can control the traction system while facing one of the selected directions and the deadman switch is selectively activatable to enable operation from both control handles.Type: GrantFiled: December 22, 2009Date of Patent: May 10, 2011Assignee: The Raymond CorporationInventors: Gregory W. Smiley, Robert J. Lewis, Kurt R. Werner, H. Scott Ryan
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Patent number: 7874396Abstract: A control system for a work machine. The control system allows an operator to selectively maintain control of a ground drive, a work tool, or both the ground drive and the work tool. The system provides a foot pedal movable between multiple positions. The foot pedal allows an operator to selectively hold the position of one or both of the ground drive control and work tool control. When the foot pedal is in a first position, the work tool control and ground drive control are not affected. When the foot pedal is in a second position, the position of the work tool control is maintained, while the ground drive control is not affected. When the foot pedal is in a third position, the position of the work tool control is maintained and the position of the ground drive control is maintained. A work tool control lock is used to prevent the work tool control from engaging when the foot pedal is in the second position or the third position.Type: GrantFiled: November 23, 2009Date of Patent: January 25, 2011Assignee: The Charles Machine Works, Inc.Inventors: Cody L. Sewell, Jacob A. Hamburger
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Patent number: 7729835Abstract: A method is described of operating a working machine which includes a body, a ground engaging structure, and a working arm carrying a working implement, and an operator control for operating hydraulic actuators for effecting operating functions of the machine, the operator control mounting an additional control which is controllable to operate at least one selected actuator for effecting a selected operating function, the additional control providing inputs to a control device which responds proportionally to operate the selected actuator, the method including controlling the additional control to operate the selected actuator, and with the additional control being controlled to provide an input to the control device to achieve a desired operation of the actuator, activating a memory mode whereby the control device memorises the input and continues to operate the selected actuator in accordance with the memorised input.Type: GrantFiled: August 21, 2007Date of Patent: June 1, 2010Assignee: JCB Compact Products LimitedInventors: David Andrew Morris, Luciano Argentieri, Andrew Stuart Mayer
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Publication number: 20100089684Abstract: A control system for a work machine. The control system allows an operator to selectively maintain control of a ground drive, a work tool, or both the ground drive and the work tool. The system provides a foot pedal movable between multiple positions. The foot pedal allows an operator to selectively hold the position of one or both of the ground drive control and work tool control. When the foot pedal is in a first position, the work tool control and ground drive control are not affected. When the foot pedal is in a second position, the position of the work tool control is maintained, while the ground drive control is not affected. When the foot pedal is in a third position, the position of the work tool control is maintained and the position of the ground drive control is maintained. A work tool control lock is used to prevent the work tool control from engaging when the foot pedal is in the second position or the third position.Type: ApplicationFiled: November 23, 2009Publication date: April 15, 2010Applicant: The Charles Machine Works, Inc.Inventors: Cody L. Sewell, Jacob A. Hamburger
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Patent number: 7658259Abstract: A material handling vehicle includes first and second control handles positioned at opposing ends of an operator compartment. The first control handle is positioned adjacent the forks for driving the vehicle in a fore or forks first direction, and the second control handle is positioned adjacent the back of the vehicle for driving the vehicle in the aft or forks trailing direction. The aft control handle is provided in a twist grip style, which can be gripped easily by an operator facing the aft of the material handling vehicle. The control handles provide stability for the operator and an intuitive operator interface irrespective of direction of travel.Type: GrantFiled: September 29, 2008Date of Patent: February 9, 2010Assignee: The Raymond CorporationInventors: Gregory W. Smiley, Robert J. Lewis, Kurt R. Werner, H. Scott Ryan
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Patent number: 7635045Abstract: A control console for a work machine having at least one work tool has a rest and a plurality of operator control devices. The plurality of operator control devices are adjustable relative to the rest and configured to control at least one function of the at least one work tool.Type: GrantFiled: July 30, 2004Date of Patent: December 22, 2009Assignee: Caterpillar Inc.Inventors: Daniel Edward Shearer, Craig B. Kelley, Royce E. Leaders
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Patent number: 7621366Abstract: A control system for a work machine. The control system allows an operator to selectively maintain control of a ground drive, a work tool, or both the ground drive and the work tool. The system provides a foot pedal movable between multiple positions. The foot pedal allows an operator to selectively hold the position of one or both of the ground drive control and work tool control. When the foot pedal is in a first position, the work tool control and ground drive control are not affected. When the foot pedal is in a second position, the position of the work tool control is maintained, while the ground drive control is not affected. When the foot pedal is in a third position, the position of the work tool control is maintained and the position of the ground drive control is maintained. A work tool control lock is used to prevent the work tool control from engaging when the foot pedal is in the second position or the third position.Type: GrantFiled: March 30, 2007Date of Patent: November 24, 2009Assignee: The Charles Machine Works, Inc.Inventors: Cody L. Sewell, Jacob A. Hamburger
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Patent number: 7610122Abstract: A mobile station for an unmanned vehicle comprises a vehicular storage area for storing a vehicle during transit or at rest. A first wireless transceiver communicates a status or command between the vehicle and the mobile station during at least one of vehicular deployment and rest. A station controller manages a management plan of the vehicle comprising at least one of retooling the vehicle, loading a payload on the vehicle, and recharging or refueling of the vehicle.Type: GrantFiled: August 16, 2005Date of Patent: October 27, 2009Assignee: Deere & CompanyInventor: Noel Wayne Anderson
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Patent number: 7500535Abstract: A control device for a construction machine according to the present invention is configured so that in the construction machine provided with an automatic stop function which automatically stops an engine by an engine controller upon a predetermined automatic stop condition being met, and a hydraulic lock function which sets a hydraulic actuator locked in an inactive state by a hydraulic lock controller, there is provided a restart switch, where after an automatic stop of the engine, when the restart switch is operated, a restart command is transmitted to the engine controller via a route independently of that of an engine switch and independently of a hydraulic unlock condition, and the engine is restarted.Type: GrantFiled: January 28, 2004Date of Patent: March 10, 2009Assignee: Kobelco Construction Machinery Co., Ltd.Inventors: Yoshiki Kamon, Yoshiyasu Umezu, Tomohiko Asakage, Norihiko Hayashi
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Patent number: 7445078Abstract: A vehicle (10) such as a heavy-duty truck (10) has an operator cab and a body section. The truck (10) has controls that control operating parameters associated with the operator cab and controls that control operating parameters associated with the body section. The truck (10) has a control system (12) that integrates the controls for the operator cab and the controls for the body section.Type: GrantFiled: May 2, 2005Date of Patent: November 4, 2008Assignee: Autocar, LLCInventors: William L. Dolesh, Robert Gordon Vit, Gerhard Engelbrecht, Chris Black, Michael Joseph LaVere, James Irwin Grubaugh
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Patent number: 7428943Abstract: A material handling vehicle includes first and second control handles positioned at opposing ends of an operator compartment. The first control handle is positioned adjacent the forks for driving the vehicle in a fore or forks first direction, and the second control handle is positioned adjacent the back of the vehicle for driving the vehicle in the aft or forks trailing direction. The aft control handle is provided in a twist grip style, which can be gripped easily by an operator facing the aft of the material handling vehicle. The control handles provide stability for the operator and an intuitive operator interface irrespective of direction of travel.Type: GrantFiled: July 31, 2003Date of Patent: September 30, 2008Assignee: The Raymond CorporationInventors: Gregory W. Smiley, Robert J. Lewis, Kurt R. Werner, H. Scott Ryan
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Publication number: 20070227803Abstract: A control system for a work machine. The control system allows an operator to selectively maintain control of a ground drive, a work tool, or both the ground drive and the work tool. The system provides a foot pedal movable between multiple positions. The foot pedal allows an operator to selectively hold the position of one or both of the ground drive control and work tool control. When the foot pedal is in a first position, the work tool control and ground drive control are not affected. When the foot pedal is in a second position, the position of the work tool control is maintained, while the ground drive control is not affected. When the foot pedal is in a third position, the position of the work tool control is maintained and the position of the ground drive control is maintained. A work tool control lock is used to prevent the work tool control from engaging when the foot pedal is in the second position or the third position.Type: ApplicationFiled: March 30, 2007Publication date: October 4, 2007Applicant: The Charles Machine Works, Inc.Inventors: Cody L. Sewell, Jacob A. Hamburger
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Patent number: 7188991Abstract: An auxiliary control station for a rear dispensing concrete truck that controls the truck's steering, braking, and throttle. A seat with controls accessible from the seat may be positioned outside of the cab, such as to allow control of the truck from a position with an unobstructed view of the rear of the truck. The concrete dispensing chute may be modified so as to allow mechanical control of the left and right swing of the chute. The auxiliary control station also controls the drum and positioning of the chute.Type: GrantFiled: April 5, 2004Date of Patent: March 13, 2007Assignee: Five Star Industries, Inc.Inventor: Patrick J. Weiler
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Patent number: 6971194Abstract: A modular excavator-backhoe control station is disclosed, the station having two control towers with joystick on their upper ends that are pivotally coupled adjacent a floor of an excavator or backhoe. They have one piece polymeric boots that cover them as well as several additional operator controls. The towers are held in fore-and-aft position by a locking fluid cylinder that is adjustable to a many fore-and-aft positions. The towers also have upper portions that are laterally pivotal.Type: GrantFiled: June 24, 2003Date of Patent: December 6, 2005Assignee: CNH America LLCInventors: Katrina L. McClelland, Curtis R. Lyons, Larry A. Johnson, Dennis J. Heyne
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Patent number: 6910544Abstract: In the operation of work machines of the type having an extensible arm, the maximum reach of the arm for a given work machine is limited by such factors as the vehicle's weight, body size and engine placement. The present invention provides for a work machine arrangement in which a work machine has an engine cooling apparatus mounted to the work machine body such that the engine cooling apparatus's longitudinal axis is oriented substantially parallel to the arm longitudinal axis.Type: GrantFiled: October 9, 2001Date of Patent: June 28, 2005Assignee: Caterpillar IncInventor: Andrew J. Sewell
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Patent number: 6877773Abstract: Automatic and simultaneous retraction of a pair of stabilizer legs for a backhoe loader machine is beneficial for the operator (not shown). Instead of retracting the stabilizer legs by manually holding a pair of control levers continuously in a retract position, the operator (not shown) may simply move the control levers to an auto-retract position. The movement of the control levers in such a manner activates a control switch in connection with each of the control levers. The control switches, in turn, activate a timer relay that activates a solenoid detent operative with each control lever. Once the solenoid detents are in an activated state, the operator (not shown) may relinquish contact with the control levers. The solenoid detents will retain the control levers in the auto-retract position via electro-magnetic forces.Type: GrantFiled: June 5, 2000Date of Patent: April 12, 2005Assignee: Caterpillar IncInventors: John S. Bibb, Shane W. Kiger, Kenneth J. McGuire
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Patent number: 6837319Abstract: A work machine is operably coupled to an interchangeable hydraulically-driven implement via at least one hydraulic line. When changing the hydraulically-driven implement, high pressure trapped within the hydraulic line may cause difficulties in disengaging the attached hydraulically-driven implement from a body of the work machine. The present invention relieves the pressure in the hydraulic line by energizing at least one electronically controlled valve while an engine of the work machine is inactive. The valve is operably coupled to an electrical actuator and is moveable between, at least, a first position and a second position. When the valve is in the first position, the hydraulic line is fluidly connected to a low pressure line. A control system includes a pressure release controller that is operably coupled to energize the electrical actuator and move the valve to the first position when the engine is inactive.Type: GrantFiled: July 29, 2002Date of Patent: January 4, 2005Assignee: Caterpillar S.A.R.L.Inventors: Paul A. Dvorak, Mark A. Sporer, James M. Bell
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Patent number: 6796392Abstract: A working machine has an operation switching lever mounted on a handle in the vicinity of a handle grip and is arranged to be manipulated by one of the hands of the operator to transmit or interrupt a driving force outputted from the drive source to the working tool. A drive switching lever is mounted on the handle and is arranged to be manipulated by one of the hands of the operator to operate a continuously variable transmission to switch driving wheels from a halt condition to a high-speed advancement condition. A disc is mounted on the handle for undergoing rotational movement relative to the drive switching lever. A control member positions the disc at a preselected angular position relative to the drive switching lever to regulate an amount of pivotal movement of the drive switching lever for adjusting a rotational speed of the driving wheels.Type: GrantFiled: April 16, 2002Date of Patent: September 28, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Takao Kobayashi, Tetsuo Iida, Hiromitsu Sasaki, Tomoaki Ishikawa
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Patent number: 6601670Abstract: Controllability of a vehicle such as a skid steer loader is improved and the burden on an operator is reduced. When operation is conducted according to the first operation pattern, the pattern switching lever of the first switching valve is switched to the first operation pattern side and the pattern switching lever of the second switching valve is switched to the first operation pattern side. Furthermore, when operation is conducted according to the second operation pattern, the pattern switching lever of the first switching valve is switched to the second operation pattern side and the pattern switching lever of the second switching valve is switched to the second operation pattern side. Moreover, when operation is conducted according to the third operation pattern, the pattern switching lever of the first switching valve is switched to the third operation pattern side and the pattern switching lever of the second switching valve is switched to the third operation pattern side.Type: GrantFiled: October 19, 2001Date of Patent: August 5, 2003Assignee: Komatsu Ltd.Inventors: Tomohisa Kaneda, Shuuji Hori
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Patent number: 6571902Abstract: A method of automatically setting an auxiliary hydraulic valve's flow rate and returning to that flow rate automatically is disclosed. The work vehicle such as a backhoe has two hand controls, one of which has a button, and the other has a thumb wheel. To set the hydraulic flow rate, one both presses the button one hand control and moves the thumb wheel on the other hand control until the proper flow rate is reached. At this point, both button and thumb wheel are released. This causes the flow rate to be saved in RAM or ROM memory. The flow rate can be varied at any time by rolling the thumb wheel up or down. One can return to the previously save flow rate by pressing the button. Both controls are preferably spring loaded.Type: GrantFiled: December 28, 2000Date of Patent: June 3, 2003Assignee: Case CorporationInventors: Dennis J. Heyne, Peter J. Dix
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Patent number: 6446738Abstract: A drill comprising a frame supported for movement over the ground in a forward propel direction and a rearward propel direction, a mast mounted on the frame in a generally vertical position, and a drill head moveable up and down the mast. The drill head is selectively engageable with the upper end of a drill pipe so that the drill pipe is raised and lowered out of and into the ground when the drill head moves up and down the mast. The drill further includes a crawler drive for moving the drill in the forward propel direction, a motor for moving the drill head to cause drilling, and an operator's cab positioned on the frame adjacent the mast. The cab includes a first console and a second console spaced from the first console, controls on the first console for operating the forward propel drive, and controls on the second console for operating the drill head motor.Type: GrantFiled: February 19, 1999Date of Patent: September 10, 2002Assignee: Harnischfeger Technologies, Inc.Inventor: James W. Boyd
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Patent number: 6226582Abstract: A control system for an electric lift truck that controls a traction motor and a hydraulic pump motor is disclosed. The speed of rotation of both motors is controlled by a pulse width modulated current supplied from a battery source by the controller in direct response to a demand communicated to the controller through an interface manipulated by an operator. A pump driven by the pump motor supplies pressurized hydraulic fluid to a lift mechanism and a power assisted steering unit. A joystick with function switches mounted thereto is provided so that the operator steers with one hand while controlling truck propulsion and all functions of the lift mechanism with the other hand. The direct control of the pump motor speed enables a fully proportional control of the hydraulic system. The control system is a compact structure that requires minimal cabling and ensures that the hydraulic system operates with energy efficiency and minimal wear.Type: GrantFiled: July 21, 1998Date of Patent: May 1, 2001Assignee: SRE Controls, Inc.Inventors: Robert T. Adsett, Pierre C. Gadbois
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Patent number: 6164285Abstract: A control console for a mobile machine includes a lower support device, a first platform and a pair of links pivotally coupled between the support device and the first platform. A second platform is mounted atop the first platform for sliding movement parallel thereto and a compression mechanism coacts with the platforms and secures them in respective positions. More specifically, each platform includes a horizontal support member and a web extending downwardly from such members. The platform webs are closely proximate one another and when the compression mechanism is tightened, the webs and one of the links are compressed together. Web/link compression prevents up-down movement of the platforms in unison and also prevents movement of the second platform with respect to the first platform. A new method for moving the position of a control lever mounted on the console is also disclosed.Type: GrantFiled: March 16, 1998Date of Patent: December 26, 2000Assignee: Case CorporationInventors: Bryan J. Garberg, Thomas G. Lykken, William B. Rodriguez
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Patent number: 6062331Abstract: An auxiliary hydraulic control system for controlling the flow of hydraulic fluid within an auxiliary hydraulic circuit associated with a particular work machine wherein such system includes a first bi-directional proportional switch actuatable to control the direction of flow within the auxiliary hydraulic circuit in either a first or a second direction and at a flow rate which is proportional to the amount of pressure being exerted on the switch in the selected direction, a second switch actuatable to provide continuous flow in the selected direction and at the selected flow rate, and an electronic controller coupled to the first and second switches for receiving signals therefrom, the controller outputting a signal to initiate continuous flow in the selected direction and at the selected flow rate when the controller receives signals indicative of the first switch being actuated, the second switch being actuated, and the first switch being released within a predetermined period of time after the second swiType: GrantFiled: October 9, 1998Date of Patent: May 16, 2000Assignee: S.A.R.L.Inventors: Timothy W. Grunow, Raymond T. Schenck, Steven T. Ufheil
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Patent number: 6030169Abstract: The present invention provides an attachment for use with a power machine. An attachment control device includes an ignition switch and a stop switch and allows a user to operate the attachment from outside the operator compartment of the power machine, when the power machine is started from the attachment control device.Type: GrantFiled: August 7, 1998Date of Patent: February 29, 2000Assignee: Clark Equipment CompanyInventors: Scott R. Rossow, Kenneth A. Brandt, Wally L. Kaczmarski, Paul A. Anderson
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Patent number: 6015019Abstract: A vehicle is disclosed including a load carrying box for the transport of material to a work site in an over-the-road manner. An auxiliary drive and steering system operates at the site for control of vehicle speed and direction with the vehicle operator re-located out of the vehicle to monitor material discharge. The motor drives the vehicle through a gear reduction unit and power transmission component powering a tooth plate clutch mounted on a driveline segment. An engine powered hydraulic pump provides an auxiliary drive bi-directional motor with a remotely controlled directional valve regulating motor speed and direction. A motor control circuit also includes counterbalancing valves served by the directional valve and a torque relief valve dissipating motor torque at the end of an auxiliary drive operation allowing clutch disengagement without risk of clutch damage.Type: GrantFiled: May 8, 1998Date of Patent: January 18, 2000Assignee: Chassis Remote, Inc.Inventors: Lahon H. Grimes, Karl V. Grimes, James E. Yelton
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Patent number: 5424623Abstract: The present invention provides, an apparatus for controllably moving a vehicle's work implement. The work implement includes a first appendage pivotally connected to the vehicle, and a second appendage pivotally connected to the first appendage. The apparatus senses the geometry of the work implement and responsibly producing a plurality of position signal and produces one of a manual control mode signal and an automatic control mode signal. An operator interface produces first and second lever command signals indicative of desired movement of the work implement. The apparatus receives the one control mode signal and the first and second lever control signals and responsively produces linear motion of the end point of the second appendage along first and second work axes if the one control mode signal is equal to the automatic control mode signal.Type: GrantFiled: May 13, 1993Date of Patent: June 13, 1995Assignee: Caterpillar Inc.Inventors: William E. Allen, Paul D. Anderson, Walter J. Bradbury, John M. Hadank, Richard B. League
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Patent number: 5355576Abstract: Guardrail assembly is performed by a vehicle carrying an inventory of guardrail sections and guardrail support blocks. The vehicle moves along a series of prepositioned guardrail posts and includes a side-mounted support frame allowing joining of guardrail sections and deployment rearward of a continuous ribbon of joined guardrail sections. As the continuous ribbon of joined guardrail sections is deployed, it is urged laterally outward and against attachment sites of the series of prepositioned guardrail posts. The continuous ribbon is then attached to the guardrail post, including mounting of an intermediate support block. The assembly and mounting under the disclosed method and apparatus is approximately half that of conventional guardrail assembly and mounting.Type: GrantFiled: March 1, 1993Date of Patent: October 18, 1994Inventor: Jack J. Miller